Fish and Chips: The Batter, the Chips, and What Actually Makes Them Work
Good fish and chips at home is entirely achievable. Most people never try because it sounds complicated. It is not complicated. It requires hot oil and a few specific techniques.
The chips
Use large floury potatoes — Maris Piper are ideal, Russet works well in North America. Peel and cut into thick batons, roughly two centimeters square. Rinse in cold water until the water runs clear, then dry thoroughly.
First fry: heat oil in a large heavy pot to 160°C. Fry the chips in batches for six to eight minutes until cooked through but not colored. Remove and drain on a wire rack. Let them cool completely — at least ten minutes.
Second fry: raise the oil temperature to 185°C. Fry the cooled chips in batches for two to three minutes until golden and crisp. Transfer to a wire rack, season immediately with salt.
The batter
Cold batter hits hot oil and the temperature shock creates the light, airy texture. Keep everything cold.
Combine plain flour with a pinch of salt and baking powder. Whisk in ice-cold beer — a pale lager works well — until you have a batter about the consistency of thick double cream. A few lumps are fine. Do not overwork it. Keep it cold while you prepare the fish.
The fish
Use thick cod or haddock fillets. Pat completely dry with paper towels and season with salt. Dust each fillet lightly with plain flour, shaking off the excess. The flour helps the batter adhere.
Heat the oil to 185°C. Dip each fillet in the batter, letting the excess drip off, then lower carefully into the hot oil. Fry for four to five minutes per side, depending on thickness, until the batter is deeply golden and the fish flakes when pressed. The batter should be crisp and slightly blistered.
Drain briefly on a wire rack. Do not cover them or the steam will soften the batter.
Serve immediately with chips, mushy peas, and malt vinegar on the table.
Frequently Asked Questions
Cod or haddock, in thick fillets. Haddock is the traditional choice in northern England and Scotland. Cod is more common in the south. Both work. What you want is a thick fillet that stays moist inside while the batter crisps around it. Thin fillets overcook.
Two reasons. First, the fish was not dried before battering — pat it dry and dust it with plain flour before dipping in batter. The flour gives the batter something to grip. Second, the oil was not hot enough. Below 185°C, the batter slides off before it sets.
The first fry cooks the potato through at a lower temperature (around 160°C). The second fry at higher heat (180°C or above) crisps the outside. Doing both in one fry at one temperature produces chips that are either cooked through but soft, or crispy but raw in the center.
Mushy peas are not optional if you want the real experience. They are dried marrowfat peas soaked overnight and cooked to a thick paste. Tartare sauce for the fish. Malt vinegar on the chips. Salt, obviously.
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